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Ottima qualità grafica e completo nelle notizie. Costo abbastanza contenuto.
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Great and quick support. The maual was exactly what I was looking for and my problem
solved. Many thanks.
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Very good service Within one day i received a pdf of the users manual and electric circuits so I was able to measure the different voltages in the printed circuit and find out the fault Payment was also reliable and easy.Without the manual i could not have repaired.So thanks to "Search for a manual"
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you are doing great job guys.....my father ask me to find out the schematics of Sony KV25R1D to sort out the problem ..(he was electrical technician, and excperianced with TV and simillar stuff). finally he found the cause and change all necessary parts....now he has got working old dog..and is very happy!!... thank you all.. NB..he also saved the repair cost.
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Perfect. Received my manual within 24 hours. Clear scan of the manual I needed. No problem.
SECTION 4 ADJUSTMENTS
4-1. MECHANICAL ADJUSTMENTS
TAPE RECORDER SECTION
PRECAUTION
Record/Playback/Erase Head Azimuth Adjustment Procedure : 1. Mode : FWD playback
test tape P-4-A100 (10kHz, �10dB) 47K � set LINE OUT (JK301) level meter
1. Clean the following parts with a denatured-alcohol-moistened swab : record/playback/erase head pinch roller rubber belts capstan 2. Demagnetize the record/playback/erase head with a head demagnetizer. 3. Do not use a magnetized screwdriver for the adjustments. 4. After the adjustments, apply suitable locking compound to the parts adjusted. 5. The adjustments should be performed with the rated power supply voltage unless otherwise noted. Torque Measurement
Torque Forward Forward Back Tension Reverse Reverse Back Tension FF/REW CQ-102RC CQ-102RC CQ-201B Torque Meter CQ-102C CQ-102C Meter Reading 36 to 61 g � cm (0.5 to 0.84 oz � inch) 2 to 6 g � cm (0.028 to 0.083 oz � inch) 36 to 61 g � cm (0.5 to 0.84 oz � inch) 2 to 6 g � cm (0.028 to 0.083 oz � inch) 61 to 143 g � cm (0.85 to 1.98 oz � inch)
2. Turn the adjustment screw for the maximum output levels. If these levels do not match, turn the adjustment screw until both of output levels match together within 1dB.
L-CH peak within output 1 dB level
within 1 dB
Screw position
R-CH peak
screw position L-CH peak R-CH peak
Tape Tension Measurement
Mode FWD REV Tension Meter CQ-403A CQ-403A Meter Reading more than 100g (more than 3.53 oz) more than 100g (more than 3.53 oz)
3. Phase Check Mode : FWD playback
test tape P-4-A100 (10kHz, �10dB) L-CH 47K � Osilloscope
set
V
H
4-2. ELECTRICAL ADJUSTMENTS
TAPE RECORDER SECTION 0dB = 0.775V
R-CH
47K � LINE OUT (JK301) screen pattern
1. The adjustnemts should be performed in the order in the service manual. (As a general rule playback circuit adjustment should be completed beforeming recording circuit adjustment.) 2. The adjustments should be performed for bothe L-CH and RCH unless otherwise indicated. Standard Intput Level
Input terminal source impedance input signal level LINE IN 10k� 0.5V (�3.8dB)
in phase 45° good
90°
135°
180°
wrong
4. Change the reverse playback mode and repeat the step 1 to 3. 5. After the adjustment, lock the adjustment screw with suitable locking compound. Adjustment Location : � record/playback/erase head �
Standard Output Level
Output terminal load impedance output signal level LINE OUT 47k� 0.5V (�3.8dB)
Test Tape
Type P-4-A100 WS-48B Signal 10kHz, �10dB 3kHz, 0dB Used for Azimuth Adjustment Tape Speed Adjustment
FWD side
REV side
adjustment screw
� 16 �
 $4.99 PMCDR50 SONY
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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